Monarch Instrument DC 2000 - Manual (Page 103)

Page 5-37
Chapter 5 Programming
To enter a filename use the UP (
↑) or DOWN (↓) Arrow Keys to highlight “Filename” and press ENTER. You will
be presented with a display that shows “ ÆFILENAMEÅ” where FILENAME is the current file name. Use the
alphanumeric keypad to enter a new file name. Note that the file name cannot contain spaces and must
consist of the letters A through Z, the numbers 0 through 9 and the characters #, %, &, (, ), @. Do not try to
type DOS extensions. Once you have entered a file name, press the ENTER key to save it and return to the
recorder menu.
NOTE: The default file name is the version with an “@” sign used as a decimal point, e.g. VM2@1A for
Version 2.1a.
5.8 MEASUREMENT
This menu item allows the user to program items directly affecting measurement of Inputs. The following
programming options are available in the Measurement Menu:
TCBO Interval - This is how often the recorder checks whether or not there is an open circuit on a thermocouple
input by injecting a small current onto the input. This menu item is no longer user programmable.
Span & Offset - Allows the user to turn Span and Offset off or on for RTDs and Thermocouples.
Demo Mode - Allows the user to turn on the Demo mode using internally generated signals
5.8.1 Span & Offset
This function enables Span and Offset compensation to allow for correction of known inaccuracies in
Thermocouples and RTD’s.
Selecting Span & Offset - From Measurement menu, use the UP (
↑) or DOWN (↓) Arrow Keys to highlight
“Span&offset” and press ENTER. The display will read either “spnofs=NO” or “spnofs=YES”.
Enabling Span & Offset - Press the YES to change the display to “spnofs=YES”. Press ENTER and the
display returns to the “Span&offset” menu prompt. Span & Offset are enabled.
Disabling Span & Offset - Press the NO key to change the display to “spnofs=NO”. Press ENTER and the
display returns to the “Span&offset” menu prompt. Span & Offset are disabled.
If enabled, a SPAN and OFFSET compensation menu item will be displayed in the POINT SETUP menu for
Thermocouples and RTDs.
5.8.2 Demo Mode
Demo Mode allows the user to put the Recorder in the Demo Mode of operation. In the Demo Mode, direct
inputs are ignored and calculated points use internally generated waveforms.
Selecting Demo Mode of Operation - At the “Demo control” prompt, press ENTER and the display reads
either “Demo = YES” or “Demo = NO”. If needed, change the current setting using the keypad then press
ENTER. The Demo mode is suited to the 1 volt scale. It is advisable to set up a demo mode then save the
configuration to disk. This can be loaded anytime the demo mode is required.
NOTE: In the Demo Mode of operation, the Recorder ignores all direct inputs and uses an internal generator
for external or calculated points.
Deselecting Demo Mode of Operation - At the “Demo control” prompt, press ENTER and the display reads
either “Demo=YES” or “Demo=NO”. Use the YES or NO keys to select the Demo mode ON or OFF and press
ENTER. The display will return to the “Demo control” prompt. Powering the unit off loses the Demo mode.